GRID PACKING UNIT, STRUCTURED PACKING COMPOSED OF SAME, AND PACKING EXTRACTION TOWER AND APPLICATION THEREOF

WIPO Patent Application WO/2022/089609

A1

A grid packing unit, a packing extraction tower and the application thereof, and a residual oil solvent deasphalting method. The grid packing unit is composed of obliquely-staggered grid sheet groups, wherein the included angle between adjacent grid sheet groups is 20°-120°, each of the grid sheet groups is composed of grid sheets parallel to each other, the included angle between each of the grid sheets and the horizontal plane is 0°-90°, a barrier strip (5) is arranged on the cross section between adjacent grid sheet groups which are mutually staggered or adjacent, and the barrier strip (5) is parallel to the grid sheet group on the adjacent side thereof. The packing extraction tower is composed of a housing (13), a raw material inlet (6) located in the middle of the housing (13), an extraction solvent inlet (7) located in the lower portion of the housing, a tower top extraction phase outlet (8), a tower bottom raffinate phase outlet (9), and extracted structured packing, wherein the extracted structured packing is filled inside the housing (13) of the extraction tower.

JPS62106803	EXTRACTION DEVICE
JP2015527435	How to remove sulfur compounds from vacuum gas oil

TANG XIAOJIN (CN)
BAO DI (CN)
REN XIAOTIAN (CN)
ZHU ZHENXING (CN)

PCT/CN2021/127637

May 05, 2022

October 29, 2021

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CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC RES INST PETROLEUM (CN)

B01D11/04; B01J19/32; C10G21/00; C10G21/14; C10G21/28; C10G21/30

CN112370814A	2021-02-19
CN214346494U	2021-10-08
CN2686717Y	2005-03-23
CN211771095U	2020-10-27
CN211274679U	2020-08-18
CN105567300A	2016-05-11

CHINA PATENT AGENT (H.K.) LTD. (CN)

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